Shelf life of DTT (Dithiothreitol)

[Diana Ralston]

In article <2kt2tjINN8tr at dns1.NMSU.Edu> malucero at nmsu.edu (Mary Elyse Lucero) writes:
>Our lab has inherited a bottle of Dithiothreitol which has apparently been
>stored at room temperature for some time (years???).  Is this stuff still
>trustworthy as a reducing agent in protein solutions?  Or should it be
>given a proper burial?


Toss it!  Make fresh solutions from solid and store them at -20.

Diana Horvath
ralston at rockvax.rockfeller.edu